28mm Plastic Foam Dispenser Pump with Special Nozzle and 100ml Capacity for Customized Skincare Applications

Components and How It Works (The Mechanics)

The magic of a foam pump lies in its internal mechanism, which is more complex than a standard trigger sprayer.

1. Actuator / Nozzle: The part you press down on. It contains a fine mesh screen.

2. Pump Chamber: Draws the liquid up from the bottle.

3. Liquid Piston: Draws a precise amount of liquid from the bottle.

4. Air Intake Valve / Air Piston: Draws air into the system.

5. Mixing Chamber: Where the liquid and air are combined.

6. Foaming Mesh / Screen: A fine sieve made of metal or plastic. This is the key component that creates the foam by breaking the air-liquid mixture into tiny, uniform bubbles.

7. Dip Tube: Reaches to the bottom of the bottle.

8. ** Closure:** The screw-on cap.

The Foam-Making Process in 4 Steps:

1. Downstroke (Press): When you press the actuator down, two things happen simultaneously:

   • The liquid piston draws a precise, small amount of liquid up from the bottle.

   • The air piston draws a large volume of air into the mixing chamber.

2. Mixing: The liquid and air are forced together into the mixing chamber, creating a turbulent, pre-foamed mixture.

3. Foaming: This air-liquid mixture is then forced under pressure through the fine mesh screen. The screen shears the mixture, creating a consistent, stable foam.

4. Upstroke (Release): When you release the actuator, springs return the pistons to their starting position, readying the pump for the next dose.

Yuyao BILL Sprayer Co.,Ltd is a professional manufacturer specialized in the production of various kinds of mini trigger sprayer, prefume sprayer, pet bottles and any other comestic packaging products. Now we have a complete set of technology and equipment, including full automatic injection machines and full automatic assembling equipment line, to ensure the production to reach 4000000 ,even more each month. Then the professional spectors to check each process during the whole production to ensure the quality of every product have no any problem, some process with professional testing machines.

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